St. Clair County, MO property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in St. Clair County is 0.64%, below the Missouri median of 0.88% and below the national median of 0.98%. The median homeowner pays $911 a year on a home worth $142,500.
- Effective rate
- 0.64%
- Median annual bill
- $911
- Median home value
- $142,500
- Rank in Missouri
- 81of 115
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $1,280 | $107 |
| $300,000 | $1,920 | $160 |
| $400,000 | $2,560 | $213 |
| $500,000 | $3,200 | $267 |
| $750,000 | $4,800 | $400 |
| $1,000,000 | $6,400 | $533 |
St. Clair County compared with Missouri and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| St. Clair County | 0.64% | $911 | $142,500 |
| Missouri median | 0.88% | $1,887 | $215,600 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in St. Clair County, MO?
The median effective property tax rate in St. Clair County is 0.64% of home value, below the Missouri median of 0.88% and below the national median of 0.98%. The median homeowner pays $911 a year on a median home value of $142,500 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in St. Clair County?
About $2,560 per year at the county's median effective rate of 0.64%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does St. Clair County compare with the rest of Missouri?
St. Clair County ranks 81 of 115 Missouri counties by effective rate. The Missouri median is 0.88% and the median bill is $1,887.